1. Department of Hepatology, Gastroenterology and Infectious Diseases, Faculty of Medicine, Al-Azhar University, Assiut, Egypt
2. Department of Medical Biochemistry, Faculty of Medicine, Al-Azhar University, Assiut, Egypt
3. Department of Gastroenterology, Hepatology and Infectious Diseases, Faculty of Medicine, Al-Azhar University, Assiut, Egypt